QUESTION 12 3.571 points When testing Ho: ??-? 2-0 vs. H1\' ? 1 significance and

Question

QUESTION 12 3.571 points When testing Ho: ??-? 2-0 vs. H1' ? 1 significance and with degrees of freedom n 512, the test statistic was calculated to -u2 0 using the a 0.01 level of be t- -2.15. Which of the following is definitely true about the p-value for this test? Hint: You can use Excel's T.DIST.2T function to calculate the p-value exactly, but you don't have to; it is enough to know that the rejection region approach and the p-value approach will always lead to the same conclusion for any given a. What would the rejection region approach tell you to do? O The p-value is greater than -2.576 O The p-value is less than or equal to -2.576 The p-value is less than or equal to 0.01. The p-value is greater than 0.05. The p-value is greater than 0.01 OThe p-value is less than or equal to o.

Explanation / Answer

12) the p value is greater than 0.01.

13)

as p value is not significant;

fail to reject the null hypothesis. we can not conclude that any of the mean profit differ for each type of vehicle.

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